Old ivory refers to a material made from the tusks of elephants that is often used for decorative and ornamental purposes. However, the use and trade of old ivory is illegal in many countries due to its connection to elephant poaching and endangerment. There are numerous synonyms for old ivory, including antique ivory, long-in-the-tooth ivory, aged ivory, vintage ivory, and aged bone. While these terms may be used to describe the appearance or texture of ivory that has undergone natural aging processes, it is important to remember that the use of ivory products contributes to the endangerment of elephants and other wildlife.